APA2057A资料

Copyright © ANPEC Electronics Corp. Rev. A.1 - Aug., 2007
2

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APA2057A
Absolute Maximum Ratings (Cont.)
Symbol TSTG TSDR PD Parameter Storage Temperature Range Maximum Lead Soldering Temperature Power Dissipation
(Over operating free-air temperature range unless otherwise noted.)
Symbol VDD HVDD, VSS VSET, VAMP_EN, VHP_EN TA TJ Parameter Supply Voltage (PVDD, CVDD, VDD) Supply Voltage (HVDD) Supply Voltage (VSS) Input Voltage Operating Ambient Temperature Range Maximum Junction Temperature Rating -0.3 to 6 +0.3 to -6 0 to VDD+0.3V -40 to 85 150 °C °C Unit V V
Thermal Characteristics
Symbol
(Note 2)
Parameter Value 45 43 Unit
o
θJA
Thermal Resistance - Junction to Ambient (Note 2) TSSOP-28P TQFN5x5-28
C/W
Note 2 : 3.42 in2 printed circuit board with 2OZ trace and copper through 10 vias of 15mil diameter vias. The thermal pad on the TSSOP-28P & TQFN-28 packages with solder on the printed circuit board.
(Note 1)
(Over operating free-air temperature range unless otherwise noted.)
Rating -65 to +150 260, 10 seconds Internally Limited Unit °C °C W
Note 1 : Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
(TSSOP-28P) (Top view)
(TQFN5x5-28) (Top view)
= ThermalPad (connected the ThermalPad to GND plane for better heat dissipation)
Absolute Maximum Ratings (Note 1)
APA2057A QB :

APA2057A XXXXX
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldering operations. ANPEC lead-free products meet or exceed the leadfree requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak reflow temperature.
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APA2057A
Ordering and Marking Information
APA2057A Lead Free Code Handling Code Temperature Range Package Code APA2057A R :
APA2057A XXXXX
Package Code R : TSSOP-28P QB : TQFN5x5-28 Operating Ambient Temperature Range I : -40 to 85 ° C Handling Code TR : Tape & Reel Lead Free Code L : Lead Free Device XXXXX - Date Code XXXXX - Date Code
Pin Configurations
28 INR_H 27 INR_A 26 GND 23 AMP_EN 25 VDD 24 BEEP VDD 1 GND 2 INR_A 3 INR_H 4 INL_A 5 INL_H 6 PGND 7 LOUT+ 8 LOUT- 9 PVDD 10 CVDD 11 CP+ 12 CGND 13 CP- 14 APA2057A 28 BEEP 27 AMP_EN 26 SET 25 BIAS 24 HP_EN 23 PGND 22 ROUT+ 21 ROUT20 PVDD 19 HVDD 18 HP_L 17 HP_R CP+ 8 CGND 9 CP- 10 CVSS 11 HVSS 12 HP_R 13 HP_L 14 16 HVSS 15 CVSS INL_A 1 INL_H 2 PGND 3 LOUT+ 4 LOUT- 5 PVDD 6 CVDD 7 APA2057A 21 BIAS 20 HP_EN 19 PGND 18 ROUT+ 17 ROUT16 PVDD 15 HVDD 22 SET
• • • • • • • •
Applications
• •
Note book PCs LCD monitor
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright © ANPEC Electronics Corp. Rev. A.1 - Aug., 2007 1
• • • •
Operating Voltage – HVDD= 3.0~3.6V – VDD= 4.5~5.5V No Output Capacitor at Headphone Amplifier Required Meeting VISTA Requirement Low Distortion AMP mode – THD+N=56dB, at VDD = 5V, RL = 4Ω, PO=1.5W – THD+N=64dB, at VDD = 5V, RL = 8Ω, PO=0.9W HP mode – THD+N=73dB, at HVDD=3.3V, RL=16Ω PO=125mW – THD+N=77dB, at HVDD=3.3V, RL=32Ω, PO=88mW – THD+N=85dB, at HVDD=3.3V, RL=10kΩ, VO=1.7Vrms Output Power at 1% THD+N – 1.9W, at VDD = 5V, AMP mode, RL = 4Ω – 1.2W, at VDD = 5V, AMP mode, RL = 8Ω at 10% THD+N –2.4W at VDD = 5V, AMP mode, RL = 4Ω –1.5W at VDD = 5V, AMP mode, RL = 8Ω Depop Circuitry Integrated Internal 19-steps Gain Setting for Flexible Application Thermal Shutdown Protection and Over Current Protection Circuitry High Supply Voltage Ripple Rejection Surface-Mount Packaging – TSSOP-28P (with enhanced thermal pad) – TQFN5x5-28 (with enhanced thermal pad) Lead Free Available (RoHS Compliant)
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APA2057A
2.4W Stereo Audio Power Amplifier (with Gain Setting) & Capfree Headphone Driver Features General Description
The APA2057A is a monolithic integrated circuit, which combines a stereo power amplifier and a stereo output capacitor-less headphone amplifier. The stereo power amplifier provides 19-steps gain setting for flexible application. The headphone amplifier is ground-reference output, and no need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, PCB’ s space and component height. Both the de-pop circuitry and the thermal shutdown protection circuitry are integrated in the APA2057A, which reduces pops and clicks noise during power on/ off and in shutdown mode. Thermal shutdown protects the chip from being destroyed by over-temperature failure. To simplify the audio system design in notebook computer applications, the APA2057A provides the internal gain setting, and these features can minimize components and PCB area. The APA2057A is available in both TSSOP-28P and TQFN5x5-28 packages. Both packages are characterized by space saving and thermal efficiency.